A cosine function is a reflection of its parent function over the x-axis. The amplitude of the function is 9, the vertical shift is 11 units down, and the period of the function is 12π/7. The graph of the function does not show a phase shift.

What is the equation of the cosine function described?

MIZERTT May 22, 2020

#1**-1 **

For the function described by:

The amplitude of the function is 9, the vertical shift is 11 units down, and the period of the function is 12π/7

y = 9cos(7x/6) - 11

Hope this helps, whymenotsmart^m^.

whymenotsmart May 22, 2020